Advanced Coding Challenges

15 self-contained Python challenges for Level 6+ learners. Each file includes a docstring explaining the problem, a function stub with type hints, and test cases you can run directly.

How to Use

1. Open a challenge file.
2. Read the docstring carefully — it describes the problem and constraints.
3. Implement the function(s) marked with # YOUR CODE HERE.
4. Run the file to execute the built-in tests:

python 01_generator_pipeline.py

All tests use assert, so silence means success. If a test fails you will see an AssertionError with a descriptive message.

Challenge Index

#	File	Topic	Level
01	01_generator_pipeline.py	Generator chaining	6
02	02_custom_context_manager.py	Context managers	6
03	03_async_web_scraper.py	asyncio concurrency	7
04	04_metaclass_registry.py	Metaclass auto-registration	8
05	05_type_narrowing.py	TypeGuard & type narrowing	7
06	06_decorator_stack.py	Composable decorators	6
07	07_dataclass_validation.py	Dataclass post_init	6
08	08_protocol_interfaces.py	Structural subtyping	7
09	09_async_producer_consumer.py	asyncio.Queue patterns	8
10	10_descriptor_protocol.py	Custom descriptors	8
11	11_coroutine_scheduler.py	Cooperative scheduling	9
12	12_generic_repository.py	Generics with TypeVar	7
13	13_event_system.py	Pub/sub with weakrefs	8
14	14_ast_code_analyzer.py	AST module introspection	9
15	15_functional_pipeline.py	Functional composition	7

Difficulty Guide

• Level 6 — Solid intermediate: generators, context managers, decorators, dataclasses.
• Level 7 — Advanced patterns: protocols, generics, type narrowing, asyncio basics, functional programming.
• Level 8 — Expert territory: metaclasses, descriptors, producer/consumer, event systems.
• Level 9 — Near-mastery: AST manipulation, cooperative schedulers.
• Level 10 — (see elite-track for Level 10 challenges)

Tips

• Read the type hints — they tell you exactly what the function should accept and return.
• Start with Level 6 challenges even if you think you are ready for higher levels. They build foundational patterns used in later challenges.
• If stuck, re-read the relevant concept doc linked in the docstring.
• Write your own additional test cases to build confidence.